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IRU1150CM の電気的特性と機能

IRU1150CMのメーカーはInternational Rectifierです、この部品の機能は「4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 IRU1150CM
部品説明 4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IRU1150CM Datasheet, IRU1150CM PDF,ピン配置, 機能
FEATURES
0.7V Dropout at 4A
Fast Transient Response
1% Voltage Reference Initial Accuracy
Built-In Thermal Shutdown
APPLICATIONS
3.3V to 2.7V Intel I740 Chip Set
TYPICAL APPLICATION
Data Sheet No. PD94129
IRU1150
4A ULTRA LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR
DESCRIPTION
The IRU1150 is a 4A regulator with extremely low drop-
out voltage using a proprietary bipolar process that
achieves comparable equivalent on-resistance to that of
discrete MOSFETs. This product is specifically designed
to provide well regulated supply for applications requir-
ing 2.8V or lower voltages from 3.3V ATX power supplies
where high efficiency of a switcher can be achieved with-
out the cost and complexity associated with switching
regulators. One such application is the new graphic chip
sets that require anywhere from 2.4V to 2.7V supply
such as the Intel I740 chip set.
3.3V
C1
100uF
VIN 5
IRU1150
VCTRL 4
VOUT 3
Adj 2
VSENSE 1
5V
C2
100uF
2.7V
R1
102
C3
R2 100uF
118
Figure 1 - Typical application of IRU1150 in a 3.3V to 2.7V for I740 chip.
PACKAGE ORDER INFORMATION
TJ (°C)
0 To 125
5-PIN PLASTIC
TO-263 (M)
IRU1150CM
5-PIN PLASTIC
Ultra Thin-PakTM (P)
IRU1150CP
8-PIN PLASTIC
SOIC (S)
IRU1150CS
Rev. 1.6
03/18/02
www.irf.com
1

1 Page





IRU1150CM pdf, ピン配列
IRU1150
Note 1: Low duty cycle pulse testing with Kelvin con-
nections is required in order to maintain accurate data.
Note 2: Dropout voltage is defined as the minimum dif-
ferential between VIN and VOUT required to maintain regu-
lation at VOUT. It is measured when the output voltage
drops 1% below its nominal value.
Note 3: Minimum load current is defined as the mini-
mum current required at the output in order for the out-
put voltage to maintain regulation. Typically the resistor
dividers are selected such that it automatically main-
tains this current.
PIN DESCRIPTIONS
PIN #
1
PIN SYMBOL PIN DESCRIPTION
VSENSE
This pin is the positive side of the reference which allows remote load sensing to achieve
excellent load regulation.
2 Adj A resistor divider from this pin to the VOUT pin and ground sets the output voltage.
3
VOUT
The output of the regulator. A minimum of 10mF capacitor must be connected from this
pin to ground to insure stability.
4
VCTRL
This pin is the supply pin for the internal control circuitry as well as the base drive for the
pass transistor. This pin must always be higher than the VOUT pin in order for the device to
regulate. (See specifications)
5 VIN The input pin of the regulator. Typically a large storage capacitor is connected from this
pin to ground to insure that the input voltage does not sag below the minimum drop out
voltage during the load transient response. This pin must always be higher than VOUT in
order for the device to regulate. (See specifications)
Rev. 1.6
03/18/02
www.irf.com
3


3Pages


IRU1150CM 電子部品, 半導体
IRU1150
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information
Data and specifications subject to change without notice. 02/01
6 www.irf.com
Rev. 1.6
03/18/02

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
IRU1150CM

4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR

International Rectifier
International Rectifier
IRU1150CP

4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR

International Rectifier
International Rectifier
IRU1150CS

4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR

International Rectifier
International Rectifier


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